MR imaging assessment of juxta cortical edema in osteoid osteoma in 28 patients.
Osteoid osteoma (OO) is a benign skeletal neoplasm. Twenty-eight patients with proven OO were studied with MRI regarding soft tissue involvement which was diagnosed when high proton-density and T2-weighted signal intensity and low signal intensity on T1-weighted images were found close to bone. Most tumors were located in the femur and tibia; 6 cases diaphyseal, 12 metaphyso-diaphyseal, and 10 epiphyseal. In relation to the cortex, 15 were located centrally or in its outer margin. Soft tissue involvement was found in 15 patients (53.6 %). A statistical relationship was found between soft tissue involvement and the tumor's location with regard to the cortex, being more frequent in peripherally located tumors. Therefore, soft tissue involvement is a frequent finding in peripherally located OO.
Nogués
P
P
Department of Radiology, Hospital Dr. Peset, E-46 017 Valencia, Spain.
Martí-Bonmatí
L
L
Aparisi
F
F
Saborido
M C
MC
Garci
J
J
Dosdá
R
R
D000293:Adolescent; D000328:Adult; D001859:Bone Neoplasms / Q000175:diagnosis* / Q000473:pathology; D001842:Bone and Bones / Q000473:pathology*; D002648:Child; D004487:Edema / Q000150:complications / Q000175:diagnosis; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D010017:Osteoma, Osteoid / Q000175:diagnosis* / Q000473:pathology; D012189:Retrospective Studies